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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 10:20:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 10:20:04 -0800
commitff47d8c05019d6e7753cef270d6399cb5a33be57 (patch)
tree78eec48c53554902062f9a06b57a700d7671330e /arch/s390/pci/pci.c
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next (diff)
parents390/syscall: fix single stepped system calls (diff)
downloadlinux-dev-ff47d8c05019d6e7753cef270d6399cb5a33be57.tar.xz
linux-dev-ff47d8c05019d6e7753cef270d6399cb5a33be57.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky: - New entropy generation for the pseudo random number generator. - Early boot printk output via sclp to help debug crashes on boot. This needs to be enabled with a kernel parameter. - Add proper no-execute support with a bit in the page table entry. - Bug fixes and cleanups. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (65 commits) s390/syscall: fix single stepped system calls s390/zcrypt: make ap_bus explicitly non-modular s390/zcrypt: Removed unneeded debug feature directory creation. s390: add missing "do {} while (0)" loop constructs to multiline macros s390/mm: add cond_resched call to kernel page table dumper s390: get rid of MACHINE_HAS_PFMF and MACHINE_HAS_HPAGE s390/mm: make memory_block_size_bytes available for !MEMORY_HOTPLUG s390: replace ACCESS_ONCE with READ_ONCE s390: Audit and remove any remaining unnecessary uses of module.h s390: mm: Audit and remove any unnecessary uses of module.h s390: kernel: Audit and remove any unnecessary uses of module.h s390/kdump: Use "LINUX" ELF note name instead of "CORE" s390: add no-execute support s390: report new vector facilities s390: use correct input data address for setup_randomness s390/sclp: get rid of common response code handling s390/sclp: don't add new lines to each printed string s390/sclp: make early sclp code readable s390/sclp: disable early sclp code as soon as the base sclp driver is active s390/sclp: move early printk code to drivers ...
Diffstat (limited to 'arch/s390/pci/pci.c')
-rw-r--r--arch/s390/pci/pci.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 38e17d4d9884..4c0fa9b3b2a0 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -224,8 +224,8 @@ static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len)
rc = zpci_load(&data, req, offset);
if (!rc) {
- data = data << ((8 - len) * 8);
- data = le64_to_cpu(data);
+ data = le64_to_cpu((__force __le64) data);
+ data >>= (8 - len) * 8;
*val = (u32) data;
} else
*val = 0xffffffff;
@@ -238,8 +238,8 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len)
u64 data = val;
int rc;
- data = cpu_to_le64(data);
- data = data >> ((8 - len) * 8);
+ data <<= (8 - len) * 8;
+ data = (__force u64) cpu_to_le64(data);
rc = zpci_store(data, req, offset);
return rc;
}